Instructions for Integrating PostFinance Checkout into Payrexx

You can offer your customers the following payment methods via PostFinance Checkout:

  • PostFinance E-Finance
  • PostFinance Card
  • Visa
  • Mastercard

Opening your PostFinance Checkout account for the Payrexx E-Commerce Tool

Product information, requirements and prices

All information on the PostFinance Checkout product can be found here: 

Registration for a free test

Register your free PostFinance Checkout test account here:

Setup using the Assistant

Set up a specific "Space". For the Space-Name, we recommend to use the name of your shop.

Activate all payment methods in the Payment step

Activate “Payrexx E-Commerce Tool” in the “Integration” step

Create user

Then generate the three security keys with “Create user” and enter them in the  Payrexx shop in accordance with the instructions in the next step.

Follow the instructions in the set-up assistant. Once you have done this, PostFinance Checkout is ready for a free test using payment screen simulators.

Add the keys to your Payrexx account

  1. Copy Space ID, User ID and Authentication Key. 
  2. Add the three details in Payrexx under "Payment provider > PostFinance Checkout". Make sure that you paste it under "Test".

Activation for productive payments

Complete the online contract for activating productive payments

Once it has been accepted, PostFinance will close all necessary Payment Service Providing and Acquiring contracts and activate all payment methods within 10 working days for you. 

The contract can be concluded online in the “Account” menu, either by clicking on “Sign now” in the header notification “Sign Contracts” or directly under “Payment contracts
Add the keys to your Payrexx account in the productive modus.

Setup is complete and you can recieve live payments with PostFinance Checkout.

Alternative method: Setting up PostFinance Checkout

Create an Account with PostFinance

After that, setup the so-called "Space" in the account:

  1. Space-Name: It is best to choose your shop/instance name.
  2. Fill in the other fields.
  3. Choose the payment methods you want to offer.
  4. You can skip the selection of an "Integration".
  5. Copy the ID of your 'Spaces' (you will have to enter it in Payrexx later).

 Create an Application User:

  1. Also enter here as a 'Name' your shop/instance name.
  2. Copy the User ID and the authentication key (these must also be entered in Payrexx).
Anlegen des Benutzers (User).
Anzeige der User-ID und den Authentication-Key.Link/Connect User and Space:
  1. Go to "Manage Roles".
  2. At Space Roles, click on the "+" .
  3. Select your shop under "Context".

Setup in Payrexx

Now enter the following data in Payrexx:

  • Space-ID
  • User-ID
  • Authentication-Key

Finally, choose which payment methods you want to offer your customers in the shop.

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